WO2011120387A1

WO2011120387A1 - Reverse fault detecting method and network side device

Info

Publication number: WO2011120387A1
Application number: PCT/CN2011/071962
Authority: WO
Inventors: 王磊; 孙晓春
Original assignee: 华为技术有限公司
Priority date: 2010-03-29
Filing date: 2011-03-18
Publication date: 2011-10-06
Also published as: CN101801018A

Abstract

The embodiments of the invention provide a reverse fault detecting method and a network side device. The method involves the following steps: test signals for detecting the reverse fault are generated (S120); the test signals are demodulated to obtain processing signals (S140); a correct result corresponding to the test signals is obtained (S160); the processing signals are compared with the correct result, and existence of the reverse fault is determined when the processing signals and the correct result are different (S180). The network side device comprises a generating unit, a demodulation processing unit, an obtaining unit and a detection unit. With the method and the network side device provided, the reverse fault can be detected by the network side device itself without an external test condition, thus the detection efficiency is improved and the reverse fault is correctly and rapidly detected.

Description

Method for detecting reverse fault and network side device

The present invention relates to the field of wireless communications, and in particular to a method and a network side device for detecting a reverse fault in the field of wireless communications. Background technique

In a wireless communication system, a base station and a user terminal are connected by an air interface. The direction from the user terminal to the base station is called reverse, and may also be referred to as uplink, which is the direction in which the user terminal transmits signaling data and service data to the base station. Only when the base station correctly receives and processes the reverse data from the user terminal can the user terminal access and various communication services be realized.

However, due to the failure of the base station device itself, the user terminal may not be able to access. A situation in which the base station device itself fails is manifested in the reverse (uplink) data abnormality of the base station device, that is, the baseband communication processing module involved in the baseband digital signal processing in the base station device is faulty, causing reverse data anomaly, and thus the influence pair comes from Successful processing of the reverse data of the user terminal (including data from the control channel and the traffic channel) results in the user terminal being unable to access the base station. In the present invention, a failure causing a reverse data abnormality is referred to as a reverse fault.

Currently, there is an access detection method, which determines the number of access users by counting the number of times the base station allocates resources in a period of time. If the detected value is zero, an alarm is generated without user access. In the method, the control module of the base transceiver station counts the number of times the resource is allocated by the base station controller to establish a service channel within a predetermined time period. However, the method can only count the number of times the base station allocates resources in order for the access terminal to successfully access or accept the communication service after the user terminal successfully accesses the base station. When the statistical value of the method is zero, there are three possibilities: one is that no user terminal actually accesses the base station; the other is that the user terminal desires to access the base station, but cannot access due to the reverse fault of the base station; Although the terminal accesses the base station, it does not attempt to access the service or accept the communication service. Therefore, according to the statistical value of the method, it is impossible to obtain information about whether the user terminal can access the base station.

Since the access detection method cannot accurately determine the user access situation, the false alarm rate is high, and it is difficult to accurately and quickly detect the reverse fault in the base station device. Summary of the invention The embodiment of the invention provides a method for detecting a reverse fault and a network side device, which can detect a reverse fault inside the network side device more accurately and quickly by the network side device.

In one aspect, an embodiment of the present invention provides a method for detecting a reverse fault, the method comprising: generating a test signal for detecting a reverse fault; demodulating the test signal to obtain a processed signal; acquiring a test signal corresponding to Correct result; The processed signal is compared with the correct result, and if the processed signal is different from the correct result, it is determined that there is a reverse fault.

On the other hand, an embodiment of the present invention provides a network side device for detecting a reverse fault, where the network side device includes: a generating unit, configured to generate a test signal for detecting a reverse fault; and a demodulation processing unit, It is used for demodulating the test signal to obtain a processed signal; an obtaining unit for obtaining a correct result corresponding to the test signal; and a detecting unit for comparing the processed signal with the correct result, if the processed signal is different from the correct result, Make sure there is a reverse fault.

Based on the above technical solution, by generating a test signal inside the network side device and running a series of processes inside the network side device, the network side device itself can complete the detection of the reverse fault without relying on external test conditions, thereby improving the detection. Efficiency and more accurate and fast detection of reverse faults. DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without paying creative labor.

1 shows a flow chart of a method of detecting a reverse fault in accordance with an embodiment of the present invention;

2 is a flow chart showing a method of generating a test signal according to an embodiment of the present invention;

3 is a flow chart showing another method of generating a test signal according to an embodiment of the present invention; FIG. 4 is a block diagram showing the structure of a network side device according to an embodiment of the present invention;

FIG. 5 is a block diagram showing another structure of a network side device according to an embodiment of the present invention;

FIG. 6 is a block diagram showing still another structure of a network side device according to an embodiment of the present invention. detailed description

The technical solutions of the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, and not all of them. Example. All other embodiments obtained by a person skilled in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

A method 100 of detecting a reverse fault in accordance with an embodiment of the present invention will first be described in conjunction with FIG. The method 100 is performed by a network side device. The network side device may be a base station, an access gateway, or the like.

As shown in FIG. 1, at S120 of method 100, a test signal for detecting a reverse fault is generated; then, at S140, the test signal is demodulated to obtain a processed signal; and then at S160, the correct result corresponding to the test signal is obtained. And at S180, the processed signal is compared with the correct result, and if the processed signal is different from the correct result, it is determined that there is a reverse fault.

The network side device internally generates a test signal, and uses the test signal as an input signal for detecting a reverse fault. Then, according to the baseband processing operation of the signal from the user terminal by the network side device, a series of signal processing is performed on the generated test signal to obtain a processed signal. The correct result corresponding to the generated test signal is then obtained for comparison with the resulting processed signal. After comparison, if the two are different, it can be determined that there is a reverse fault inside the network side device.

According to the method for detecting a reverse fault provided by the embodiment of the present invention, by generating a test signal inside the network side device and running a series of processes inside the network side device, the network side device itself can complete the detection of the reverse fault without relying on The external test conditions improve the detection efficiency and enable accurate and rapid detection of reverse faults.

Specifically, in S120, a test signal for detecting a reverse fault is generated.

According to one embodiment of the invention, the test signal can be obtained by the method 200 of generating a test signal as shown in FIG.

In S220, a preset processing result is acquired.

The pre-set processing result may be an expected processing result that is assumed in advance, such as a desired bit stream, an array or a character string, and the like.

In S240, an input signal corresponding to the preset processing result is generated, and the input signal is used as a test signal.

According to a predetermined communication standard such as CDMA2000, WCDMA, TD-SCDMA, LTE (Long Term Evolution), a corresponding input signal can be deduced based on a preset processing result. That is to say, if such a processing result is to be obtained, what kind of signal needs to be input according to the processing specification in the predetermined communication standard. For example, if the expected processing result is "ABC", the bit stream to be input can be derived according to the communication standard, assuming "001000110101". The bit stream is then the input signal and is used as a test signal for detecting a reverse fault. After the test signal is generated in accordance with method 200, the correct result in S160 is the pre-set processing result. At this point, the correct result of obtaining the test signal is to obtain the preset processing result as the correct result.

According to another embodiment of the present invention, the test signal can also be obtained by the method 300 of generating a test signal as shown in FIG.

Referring to FIG. 3, in S320, the reverse channel is called, and the reverse channel includes parameter information required to generate a test signal.

The reverse channel is the channel occupied by the signal transmitted by the user terminal to the network side device. The network side device can allocate a reverse channel to the user terminal according to the request of the user terminal. The process of assigning the reverse channel is a process of calling the reverse channel, and can also be visually understood as opening the reverse channel. The network side device can also always call some reverse channels (such as common control channels, etc.) for the user terminal, and these reverse channels are always open. When the reverse channel is turned on, that is, after the call, the signal transmitted in the reverse channel needs to be generated based on the parameter information related to the reverse channel.

The reverse channel of the network side device call (open) contains the parameter information needed to generate the test signal. The parameter information may be parameter information required to generate a signal recognizable and processed by the network side device according to a specific communication standard. For example, in CDMA2000, WCDMA, TD-SCDMA, and other communication standards, the parameter information may include a short code, a long code, a packet length, a code rate, a modulation scheme, and the like. It is necessary to generate a signal that the network side device can recognize and process according to the parameter information provided by the reverse channel. The parameter information of the reverse channel provides a channel information portion for the generation of the test signal.

The network side device can periodically call the reverse channel to periodically initiate detection of the reverse fault. In addition, the reverse channel can also be called when the predetermined condition is met. For example, when the network side device fails to access the user terminal within a predetermined time, the timer is started. If the user terminal does not access the timer expires, the reverse channel is invoked to initiate detection of the reverse fault. Or when the number of user terminals that the network side device finds to access is lower than the predetermined threshold, the reverse channel is called. Whether the reverse channel is called periodically or the call to the reverse channel is triggered conditionally, the existence of a reverse fault can be detected in a timely and proactive manner.

In S340, source data including a binary bit stream is generated.

The source data may be data information to be input determined according to a desired processing result of the network side device, or may be any generated data information. The source data can include a binary bit stream of any length to provide a valid data portion for the generation of the test signal.

In S360, a test signal is generated based on the parameter information and the source data. The test signal can be generated by the parameter information contained in the reverse channel called in S320 and the source data generated in S340 as specified in the predetermined communication standard. The predetermined communication standard may be a communication standard such as CDMA2000, WCDMA, TD-SCDMA, LTE, etc., in which it is specified how to generate signals that the network side device can identify and process, such as how to encode, how to spread spectrum, how to modulate, how to form a data packet, What timing is required to output, etc. The network side device follows a predetermined communication standard, and based on the parameter information and the source data, a test signal for detecting a reverse fault can be obtained. The test signal can be equivalent to a digital baseband signal generated by the user terminal that is desired to be transmitted to the network side device.

The order of the various parts of the method 300 described above is not limiting as to the scope of the invention. For example, although the method 300 is described above in the manner of executing S320 and then executing S340, the method 300 may also perform S340 and then execute S320, or perform S320 and S340 in parallel, as long as the parameter information and the source data exist before executing S360. Just fine.

In the case that the test signal is generated by the method 300, the correct result obtained in S160 may be a processing result corresponding to the test signal calculated according to a predetermined communication standard, or may be a verification result calculated according to the test signal, and may also be It is a parameter related to the length of the test signal, and the like.

According to the method 300 of generating a test signal, since different reverse channels can be flexibly called and the source data can be arbitrarily generated, the test signal can be flexibly generated. Of course, those skilled in the art may think that, besides dynamically generating the test signal in the process of detecting the reverse fault, one or more test signals for detecting the reverse fault may be stored in the network side device in advance, when When a reverse fault needs to be detected, one of the stored test signals is selected for the input signal required for detection.

Returning to Fig. 1, in S140, the test signal is demodulated to obtain a processed signal.

The demodulation processing of the network side device can be equivalent to the signal processing performed after the network side device receives the signal from the user terminal and converts it into a baseband digital signal. In the demodulation process, demodulation of the baseband signal may be included, and signal processing such as despreading, decoding, etc. of the baseband signal may also be included. According to an embodiment of the present invention, the network side device may use the generated test signal as a baseband digital signal from the user terminal, despread, demodulate, decode, and the like, and perform a series of operations conforming to a predetermined communication standard to obtain a demodulation process. After processing the signal.

In S160, the correct result corresponding to the test signal is obtained.

In the case where a test signal is generated based on a preset processing result, the preset processing result is a correct result corresponding to the test signal. The process of getting the correct result is the process of getting the pre-set processing results. For example, in the case where it is desired to obtain the "ABC" processing result as described above to generate a specific bit stream, "ABC" is the correct result corresponding to the test signal (specific bit stream). It is also possible to calculate a processing result corresponding to the test signal according to a predetermined communication standard, and use the calculated processing result as the correct result. Since the specification of how to process the signal is defined in predetermined communication standards (such as CDMA2000, WCDMA, TD-SCDMA, WiMAX, LTE, etc.), the processing that should be obtained after the correct processing of the test signal can be calculated according to the correct flow in the communication standard. As a result, the calculated processing result is taken as the correct result.

In addition, the correct verification result corresponding to the test signal can also be obtained as a correct result. For example, the verification result corresponding to the test signal can be calculated directly based on the verification information in the test signal, and the calculated verification result is taken as the correct result. In addition, the correct verification result or correct result obtained may also be a specific value indicating that the verification is correct. For example, if "0" means the check is correct and "1" means a check error, the correct result is "0".

Of course, those skilled in the art can also set other results corresponding to the test signal for detecting the test signal. For example, it may be a useful data portion carried in the test signal or the test signal itself or the like. The correct result corresponding to the test signal can be stored in advance in the network device, or the correct result can be calculated at the same time as or after the test signal is generated.

In S180, the processed signal is compared to the correct result, and if the processed signal is different from the correct result, it is determined that there is a reverse fault.

The processed signal obtained by S140 is compared with the correct result obtained by S160, and it is judged whether there is a difference between the two. If it is found by comparison that the processed signal is different from the correct result, it can be determined that there is a reverse fault in the network side device. A reverse fault causes the demodulation process to operate abnormally, affecting the correct processing of the test signal. It can be determined that if the network side device enters the reverse signal from the user terminal, the reverse signal will not be correctly processed due to a problem in the signal processing of the network side device.

On the other hand, if the processed signal is the same as the correct result, the demodulation processing of the network side device is normal, and no reverse fault exists.

The content of the processed signal can be compared to the content of the correct result, and when the contents of the two are different, there is a reverse fault. Of course, those skilled in the art will appreciate that in addition to comparing the processed signals with the content of the correct results, other information can be compared. For example, it is possible to compare whether the length of the processed signal and the length of the correct result are the same, and if the lengths of the two are different, there is a reverse fault. It is also possible to compare the verification result of the processed signal with the obtained correct result as a correct verification result, and if there is a difference, there is a reverse failure. The correct verification result may be a predetermined fixed value (such as "0" for correct calibration), or may be a verification result calculated according to the test signal, or may be obtained according to the verification information in the processed signal. One or more possible correct results. For example, by processing the check in the signal Information to detect whether the processed signal is correct. If it is not correct, there is a reverse fault. In this case, it can be equivalent to one or more possible correct results obtained by verifying the information, and comparing the processed signal with the possible correct result. Or, it may be equivalent to a conclusion obtained by comparing a verification result calculated based on the verification information in the test signal with a specific correct verification result. The above comparison methods may exist alone or in combination. For example, when coexisting, an appropriate comparison method can be selected according to computational complexity, resource constraints, and the like.

Although the method 100 is described in the order of performing S120 and S140 and then executing S160, S160 may be located before S120, or may be located after S120 and before S140, as long as the processing signal and the correct result are compared before S180, the processing signal is obtained. The correct result can be.

According to the method for detecting a reverse fault provided by the embodiment of the present invention, by generating a test signal inside the network side device and running a series of processes inside the network side device, the network side device itself can complete the detection of the reverse fault without relying on The external test conditions improve the detection efficiency and enable more accurate and rapid detection of reverse faults.

According to still another embodiment of the present invention, after S180, the reverse fault can also be automatically restored. For example, when it is determined that there is a reverse fault, the backup process of the demodulation processing operation may be started, or the original process of the demodulation process stored in the network side device may be used to update the existing process, and other network side device help may be notified. Demodulation processing of the reverse signal is performed. Of course, those skilled in the art will also appreciate other ways of automatically recovering a reverse fault. Through the automatic recovery of the reverse fault, the disadvantage of manual recovery of the reverse fault of the network side device by the human being can be overcome, the efficiency of solving the reverse fault is improved, and the cost is saved.

The method of detecting a reverse fault performed by the network side device is described in detail above. Next, a network side device for detecting a reverse failure will be described with reference to Figs. 4 to 6 .

FIG. 4 is a block diagram showing the structure of a network side device 400 according to an embodiment of the present invention. The network side device 400 includes a generating unit 420, a demodulating processing unit 440, an obtaining unit 460, and a detecting unit 480. The generating unit 420 can be used to generate a test signal for detecting a reverse fault. The demodulation processing unit 440 can be used to demodulate the test signal to obtain a processed signal. The obtaining unit 460 can be used to obtain the correct result corresponding to the test signal. Detection unit 480 can be used to compare the processed signal to the correct result, and if the processed signal is different from the correct result, it is determined that there is a reverse fault.

The above and other operations and/or functions of the generating unit 420, the demodulating processing unit 440, the obtaining unit 460, and the detecting unit 460 of the network side device 400 may refer to corresponding portions in the above methods 100, 200, and/or 300, in order to avoid duplication. , will not repeat them here. The network side device according to the embodiment of the present invention can generate a test signal therein and run a series of processes therein, so that the network side device itself can complete the detection of the reverse fault without relying on external test conditions, thereby improving Detects efficiency and enables accurate and fast detection of reverse faults.

FIG. 5 is a block diagram showing the structure of a network side device 500 according to an embodiment of the present invention. Network side device

The generating unit 520, the demodulating processing unit 540, the obtaining unit 560, and the detecting unit 580 of the network 500 are substantially the same as the generating unit 420, the demodulating processing unit 440, the obtaining unit 460, and the detecting unit 480 of the network side device 400, and details are not described herein again. .

According to an embodiment of the present invention, the generating unit 520 of the network side device 500 may include a result obtaining subunit 522 and a signal generating subunit 524. The result acquisition sub-unit 522 can be used to obtain a predetermined processing result. The signal generation sub-unit 524 can be used to generate an input signal corresponding to a preset processing result, using the input signal as a test signal. The obtaining unit 560 can be used to obtain a preset processing result as a correct result.

In addition, the obtaining unit 560 is further configured to calculate a processing result corresponding to the test signal according to a predetermined communication standard, and use the calculated processing result as a correct result. The above and other operations and/or functions of the acquisition sub-unit 522, the signal generation sub-unit 524, and the acquisition unit may be referred to the corresponding portions of the above methods 100, 200, and/or 300. To avoid repetition, details are not described herein.

FIG. 6 is a block diagram showing the structure of a network side device 600 according to an embodiment of the present invention. The generating unit 620, the demodulating processing unit 640, the obtaining unit 660, and the detecting unit 680 of the network side device 600 are substantially the same as the generating unit 420, the demodulating processing unit 440, the obtaining unit 460, and the detecting unit 480 of the network side device 400, where No longer.

According to an embodiment of the present invention, the generating unit 620 of the network side device 600 may include a calling subunit 622, a first generating subunit 624, and a second generating subunit 626. The calling subunit 622 can be used to call the reverse channel, which includes the parameter information needed to generate the test signal. The first generation sub-unit 624 can be used to generate source data comprising a binary bit stream. The second generation sub-unit 626 can be configured to generate a test signal based on the parameter information and the source data. Additionally, more specifically, the calling sub-unit 622 can be used to periodically call the reverse channel or to invoke the reverse channel when a predetermined condition is met.

The acquisition unit 660 of the network side device 600 may include a first acquisition subunit 662 and/or a second acquisition subunit 664. The first obtaining sub-unit 662 is configured to calculate a processing result corresponding to the test signal according to a predetermined communication standard, and use the calculated processing result as a correct result. The second obtaining sub-unit 664 can be configured to obtain a correct verification result corresponding to the test signal as a correct result. The detecting unit 680 of the network side device 600 may include at least one of the following: a first comparing subunit 682, a second comparing subunit 684, and a third comparing subunit 686. The first comparison sub-unit 682 can be used to compare the content of the processed signal with the content of the correct result. The second comparison sub-unit 684 can be used to compare the length of the processed signal to the length of the correct result. The third comparison sub-unit 686 can be used to compare the verification result of the processed signal with the correct result as a correct verification result.

The calling subunit 622, the first generating subunit 624, the second generating subunit 626, the first obtaining subunit 662, the second obtaining subunit 664, the first comparing subunit 682, the second comparing subunit 684, and the third comparison The above and other operations and/or functions of the subunit 686 may be referred to the corresponding portions of the above methods 100, 200 and/or 300. To avoid repetition, no further details are provided herein.

In addition, the network side device 600 may further include a recovery unit 690. Recovery unit 690 can be used to automatically recover from the reverse fault. The above and other operations and/or functions of the recovery unit 690 can be referred to the corresponding portions of the above method 100. To avoid repetition, details are not described herein.

According to the network side device provided by the present invention, since the recovery unit 690 can automatically recover the reverse fault, the disadvantage of manual recovery of the reverse fault of the network side device by the human power can be overcome, and the reverse fault is improved. Efficiency and cost savings.

Those skilled in the art will appreciate that the method steps and elements described in connection with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. For example, the method 100 for detecting a reverse fault may be implemented entirely by electronic hardware, or may be implemented entirely by computer software, or may be partially implemented by computer software or partially by electronic hardware such as an FPGA and/or a dedicated chip. . For example, the reverse channel can be first invoked by computer software and a binary bit stream can be generated, and then input into the FPGA to be converted into a signal form conforming to the timing requirements of the predetermined communication standard, and then the output signal of the FPGA is input into the modem chip through modulation and demodulation. The modulation processing part in the chip generates a test signal, and then the demodulation processing part in the modulation and demodulation chip demodulates the test signal to obtain a processed signal, and finally outputs the processed signal from the modem chip to the computer software, by the computer The software compares the correct result corresponding to the test signal with the processed signal, and when the two are different, it is determined that there is a reverse fault.

In addition, in order to clearly illustrate the interchangeability of hardware and software, the steps and components of the various embodiments have been described generally in terms of functionality in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. Those skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention. The method steps described in connection with the embodiments disclosed herein may be implemented in hardware, a software program executed by a processor, or a combination of both. Software programs can be placed in random access memory (RAM), memory, read only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM or technology Any other form of storage medium known.

While some embodiments of the present invention have been shown and described, it will be understood by those skilled in the art It is within the scope of the invention.

Claims

Claim

A method for detecting a reverse fault, comprising:

Generating a test signal for detecting a reverse fault;

Demodulating the test signal to obtain a processed signal;

Obtaining the correct result corresponding to the test signal;

The processed signal is compared to the correct result, and if the processed signal is different from the correct result, it is determined that there is a reverse fault.

2. The method according to claim 1, wherein the generating a test signal for detecting a reverse fault comprises:

Calling a reverse channel, the reverse channel including parameter information required to generate the test signal; generating source data including a binary bit stream;

Generating the test signal according to the parameter information and the source data.

3. The method according to claim 2, wherein the invoking the reverse channel comprises: periodically calling the reverse channel, or calling the reverse channel when a predetermined condition is met.

4. The method of claim 1 wherein said comparing said processed signal to said correct result comprises at least one of:

Comparing the content of the processed signal with the content of the correct result;

Comparing the length of the processed signal to the length of the correct result;

The result of the verification of the processed signal is compared to the correct result as a result of a correct check.

The method according to any one of claims 1 to 4, wherein the obtaining the correct result corresponding to the test signal comprises one of the following:

Calculating a processing result corresponding to the test signal according to a predetermined communication standard, and using the calculated processing result as the correct result;

Obtaining the correct verification result corresponding to the test signal as the correct result.

The method according to claim 1, wherein the generating a test signal for detecting a reverse fault comprises:

Obtain a preset processing result;

Generating an input signal corresponding to a preset processing result, and using the input signal as the test signal;

The obtaining the correct result corresponding to the test signal includes: acquiring a preset processing result as the correct result.

A network side device for detecting a reverse fault, comprising: a generating unit, configured to generate a test signal for detecting a reverse fault;

a demodulation processing unit, configured to perform demodulation processing on the test signal to obtain a processing signal, and an acquiring unit, configured to acquire a correct result corresponding to the test signal;

And a detecting unit, configured to compare the processed signal with the correct result, and if the processed signal is different from the correct result, determining that there is a reverse fault.

The network side device according to claim 7, wherein the generating unit comprises: a calling subunit, configured to invoke a reverse channel, where the reverse channel includes parameter information required to generate the test signal ;

a first generating subunit, configured to generate source data including a binary bit stream;

And a second generating subunit, configured to generate the test signal according to the parameter information and the source data.

9. The network side device according to claim 8, wherein the calling subunit is configured to periodically invoke the reverse channel, or to invoke the reverse channel when a predetermined condition is met.

The network side device according to claim 7, wherein the detecting unit comprises at least one of the following:

a first comparison subunit, configured to compare content of the processed signal with content of the correct result;

a second comparison subunit, configured to compare a length of the processed signal with a length of the correct result;

And a third comparison subunit, configured to compare the verification result of the processed signal with the correct result as a correct verification result.

The network side device according to any one of claims 7 to 10, wherein the acquiring unit comprises at least one of the following:

a first obtaining subunit, configured to calculate a processing result corresponding to the test signal according to a predetermined communication standard, and use the calculated processing result as the correct result;

And a second obtaining subunit, configured to obtain a correct verification result corresponding to the test signal as the correct result.

The network side device according to claim 7, wherein the generating unit comprises: a result obtaining subunit, configured to acquire a preset processing result; a signal generating subunit, configured to generate an input signal corresponding to a preset processing result, and use the input signal as the test signal;

The obtaining unit is configured to obtain a preset processing result as the correct balance.